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helium

英 ['hiːlɪəm] 美['hilɪəm]

英英释义实用场景例句

n. [化学] 氦（符号为He，2号元素）

实用场景例句

Helium is a very light gas.: 氦是一种非常轻的气体。

Helium is a gas used in balloons.: 氦是一种用于气球的气体.

Unlike helium - 4, it cannot be produced by radioactive decay.: 与氦 - 4不同之处是, 氦-3不能由放射性衰变产生.

The helium - 3 apparently became trapped when the earth was formed.: 显然,当地球形成时,氦 - 3就被圈闭了.

After hydrogen, the atom with the simplest structure is that of helium.: 在氢元素之后, 氦的原子结构最简单.

Hydrogen might be depleted with some of it turning into helium.: 氢可能被耗尽,一部分变为氦.

The discovery also explains why helium is found in radioactive mineral deposits.: 这个发现也解释了为什么在放射性矿渣中找到了氦.

A fountain of helium spurt out of the tube.: 有一股氦的喷泉从小管中喷出.

Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.: α粒子是从天然放射性蜕变得到的带正电的氦核.

The bizarre behavior of superfluid helium has attracted many able theorists.: 超流体氦这些异乎寻常的行为吸引了许多有才干的理论物理学家.

Helium is a noble gas.: 氦气是惰性气体.

Helium and neon are inert gases.: 氦和氖为惰性气体.

Most big balloons are now filled with helium.: 现在许多大气球中充的是氦气.

Helium and neon measurements provide further evidence that the earth was not completely melted.: 氦和氖的测定,提供了更多的关于地球并非全部熔融的证据.

Alpha particles -- helium nuclei -- were being hurled through the tube, in which an artificial mist had been created.: 粒子 —— 氦核 —— 正通过试管被抛出, 从而在试管中形成人造迷雾.